Under the auspices and control of the American, do you think they will let the Filipinos handle those weapons? Its part of EDCA deal, the prepositioning of US weapons, it negated the restriction of hosting a military base in the Philippine. So the US need an excuse to deployed those missiles and this is their solution.
I've wondered for a while, what exactly is the PH's endgame here?
Restarting EDCA and buying mid-range missiles, sure, to some degree they strengthen your defense. But these things won't help the PH proactively advance their interest in the SCS.
Best case imo, is that they are used as negotiating leverage in the future when the PH is willing to come around. But personally, I don't see this happening before the 2028 election.